What is a salt in chemistry terms? Explain the trends among the halogens. What are the different physical properties between HCl and NaCl? Suggest why the melting temperature of magnesium oxide is higher than that of magnesium chloride, even though both ar...
What is a salt in chemistry terms? Describe electrolytes and non-electrolytes in terms of polarity. Give some examples. Explain the geometry of S_2O_8^{2-}, peroxydisulfate ion. Does a non-electrolyte dissolve in water to give ions, molecules, or both? Explain. ...
In chemistry, a compound is a substance made up of two or more different chemicalelementscombined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchangingelectronsbe...
Technically, the term "mixture" is misused when a recipe calls for you to mix, for example, flour and eggs. Achemical reactiondoes occur between those cooking ingredients. You can't undo it. However, mixing dry ingredients, such as flour, salt, and sugar, does produce an actual mixture. ...
Sheisalsoveryobservant.Salmaynotbeableto read,butshe notices detailsthatothers often miss.WhensomeofherSunnysidefriendsbegin todie,Saltriestofigureoutwhy.Becauseofher disability,peopledon?talwaystakeherseriously, butothershelp,sometimesinsurprisingways. Atthehalfwayhouse,“Ienjoyedgettingto knowpeople whoat...
How does salt water in a pool work? What is a salt chlorine generator for a pool? In this article, we discuss salt chlorinators (also called salt chlorine generators) and how they work.
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, ...
Chemicals were bases due to their observable properties. In this respect, bases were substances that tasted bitter, were slippery and turned litmus dye from red to blue. When you added acids to bases, both substances lost their characteristics, and you got a solid material or salt. Bases got...
Salt particles dissolving in water is an example of chemical change. True | False 2. Dark matter is anything that occupies space and has mass. True | False 3. The visible light emitted by the Sun is an example of matter. True | False 4. A microscope is an important optical ...
霍布斯鲍姆说:“战争席卷了每一个强国,事实上,除了西班牙等少数几国外,全欧洲几乎加入这场战争……然而,这一切现象当中,意义最为重大的改变,却要数美国人的参战……而俄国人的退出,则催生了,”文中提到的“催生了”是指（）